Manager Amber Butler
Amber Butler joined the Department in February 2019, migrating from the County of Ventura General Services Agency as the accounting manager. Amber has been employed by the County of Ventura since 2010 and prior to that was a financial analyst in private industry. Currently she manages the financial operations of the Sheriff’s Department. Amber Butler received her Bachelor of Science degree in Accountancy from California State University, Northridge and has a Master of Public Administration degree from the California State University, Northridge.
Commander John Reilly
Commander John Reilly is a 24 year veteran of the Sheriff’s Office who holds a Bachelor’s Degree in History from California University at Northridge and a Master’s Degree in Criminal Justice from American Military University. John has a diverse law enforcement background in a variety of disciplines from tactical operations to investigations. John spent a majority of his career working in Special Enforcement Units and as Detective and Detective Supervisor. His most recent experience includes supervising county-wide patrol operations as the Watch Commander and working as the Sheriff’s Adjutant. John spent the last three years of his career working as the Chief of Police for the City of Moorpark. He is currently assigned to the East County Patrol Station in Thousand Oaks. He is responsible for the patrol operations in the cities of Thousand Oaks and Moorpark. He also oversees the Tactical Response Team, K-9 Unit, Reserve Deputy Program and the Chaplain Cadre. John and his wife Kelly have three children and reside in the City of Moorpark. John has been active in the community and spends much of his time off coaching youth sports and volunteering at community events.
Manager Tracey Pirie
Sheriff’s Bureau Manager I, Tracey Pirie, joined the Sheriff’s Department in April 2008. She is currently responsible for the Human Resources and Records units within Sheriff’s Support Services. The Human Resources unit provides the day-to-day human resources support for the Department including recruitment and retention, benefits, labor relations and background investigations. The Records unit maintains and provides information to the public, law enforcement and the courts in terms of live scan fingerprinting, permits and licenses, criminal records, warrants, etc. Ms. Pirie has over 25 years of public sector experience in Human Resources. She possesses a Bachelor’s degree in Business from California State University, Northridge and is currently pursuing a Masters degree in Public Administration.
Commander Mike Hartmann
Commander Mike Hartmann joined the Sheriff’s Office in 1995, after spending nearly nine years in the United States Navy where he served as a member of the submarine force. During his career with the Sheriff’s Office, Mike has worked a variety of assignments including Detention Services at the Todd Road and Pre-Trial Detention Facilities as well as working patrol in Ojai, Thousand Oaks, Moorpark, and Camarillo. Later in his career, he worked in general felony and sexual assault investigations, and he worked internal investigations as part of the Sheriff’s Professional Standards Bureau. As a captain, Mike worked as a patrol watch commander, managed the East County Investigations Bureau, and managed the Sheriff’s Court Services Bureau. He was also the commander of the Sheriff’s Tactical Response Team (TRT), which consists of highly trained deputies who respond to incidents of civil unrest and man-made/natural disasters. Mike has a Bachelor of Science degree in Business Management and a Master of Science degree in Emergency Services Administration from Long Beach State, and he is a graduate of both the Sherman Block Supervisory Leadership Institute and POST Command College (Class 59). Mike is very active in his community as a member of the Tri-Valley Regional Leadership Council and the Southern California Law Enforcement Torch Run Council in support of Special Olympics. Mike is currently assigned to the Detention Services Division where he has oversight of the Pre-Trial Detention Facility and the Court Services Bureau.
Commander Rob Davidson
Commander Rob Davidson began his career with the Sheriff’s Office in 1991. In his many years with the Sheriff’s Office, Rob has worked in the Patrol, Detention, Support and Special Services Divisions. Rob spent 9 years as a detective investigating sex crimes, robberies and assaults and his final 4 years as a homicide detective. Rob also worked as an Internal Affairs investigator and understands the importance of maintaining the public’s trust through high ethical standards and transparency. As a Captain, Rob oversaw the administrative functions of the Detention Services Division, the Sheriff’s largest division. As a Commander Rob has oversight of Internal Affairs, the Academy and the Inspections and Audit Unit.
Rob is passionate about his involvement with the K-9 Unit and served 4 years as the Unit Captain; he remains involved with the K-9’s as the Treasurer of the Ventura County Sheriff’s Canine Foundation.
Rob received his Bachelor’s Degree in Political Science from CSU, Stanislaus and holds a Master’s Degree in Leadership with an emphasis on Public Policy from the University of Southern California (Fight On!).
Rob lives in Ventura with his wife Terri, together they have three children and 2 dogs. They spend their free time travelling out of state to see their kids in college and can be found walking their dogs at the beach.
Commander Romano Bassi
Commander Romano Bassi, the son of Italian immigrants, grew up in the San Fernando Valley with English as his second language. In 1994, Romano moved to Ventura County and joined the Sheriff’s Office. After graduating the academy, Romano was assigned to the Pre-Trial Detention Facility and was one of the opening staff members for the newly constructed Todd Road Jail. Romano’s past assignments include patrol deputy in the Moorpark and Thousand Oaks areas, Administrative Scheduling Senior Deputy and Property Crimes Investigator. Romano was also a member of the Special Weapons and Tactics Team (S.W.A.T.) for 16 years. As a sergeant, Romano worked assignments as Jail Watch Commander, Patrol Sergeant, and the Thousand Oaks Community Oriented Policing and Problem Solving (C.O.P.P.S.) Unit Sergeant. In 2015, Romano was promoted to Captain and worked as a Patrol Watch Commander. In 2017, Romano became the Captain of the Aviation Unit and oversaw all airborne and search and rescue operations for the Sheriff’s Office. He also served as the Technology Captain where he oversaw technology related projects. Romano was promoted to Commander in April 2019. He is currently assigned to the Special Services Division where he oversees Major Crimes, Narcotics, and the Crime Analysis Unit. He also oversees the Aviation/Search and Rescue Unit, Intelligence Unit, and the S.W.A.T. and Bomb Teams.
Romano holds a Bachelor’s Degree in Adult Vocational Education from San Diego State University.
Manager Nivanjit Gill
Forensic Bureau Manager, Dr. Nivan Gill, joined the Ventura County Sheriff’s Office in March of 2015. She has laboratory experience of over 31 years. Currently she has oversight over the operations of the Ventura County Forensic Science Laboratory. Nivan served as a Forensic Scientist at the Contra Costa County Sheriff’s Department for 24 years. She was a Forensic Manager and in-charge of oversight of Toxicology, Controlled Substances, Forensic Alcohol, Latent Fingerprint and Crime Scene Units. Nivan has a Ph. D degree in medical sciences from Post Graduate Institute of Medical Education and Research and has received Bachelor Science and Master of Science degree in Zoology from Punjab University. These institutes are located in Chandigarh, India. She has authored 19 research publications. She is a certified ASCLD/Lab ISO 17025 Assessor since 2008 and ASCLD/LAB Legacy inspector since 2005 and has participated in several national and international lab assessments. She is a member of several professional organizations, including California Association of Crime Lab Directors. Nivan’s hobbies are hiking, traveling, and spending time with friends and family.
Commander Tim Hagel
Commander Tim Hagel is assigned as the Chief of Police for the City of Thousand Oaks. Tim has been employed with the Ventura County Sheriff’s Office since 1987. He was born and raised in the City of Thousand Oaks and after graduating from Thousand Oaks High School he attended Moorpark College. Tim transferred to the California State University system and attended Humboldt, Northridge and Dominguez Hills Universities. He graduated with a Master’s Degree in Public Administration. He began his career with the Sheriff’s Office as a volunteer Reserve Deputy and was assigned to the Thousand Oaks Police Station. Since then, Tim has worked in every Division in the Sheriff’s Jurisdiction including assignments in the Sheriff’s Helicopter Rescue Unit, four different jails, patrol services in Fillmore, Thousand Oaks, Moorpark and nearly all of the unincorporated communities. In addition, Commander Hagel has worked assignments as a detective in felony investigations, narcotics and the internal audit unit. For many years he was the Search and Rescue Coordinator and Emergency Operation Center Planning Section Chief. Tim was assigned as the Chief of Police for Fillmore and later the Commander of the West County Patrol Services where he has oversight of unincorporated communities from Lockwood Valley to the ocean, including the Santa Clara, Ventura and Ojai Valleys. He also managed the Sheriff gang unit, office of emergency services and the county 911 center. Commander Hagel is a recipient of the Medal of Valor and the Ventura County Innovative Manager of the Year.
Commander Patti Salas
Commander Patti Salas grew up in the Napa Valley in Northern California. She began her law enforcement career at 16 as a police cadet and working weekends as a dispatcher at Calistoga Police Department. After serving as a Reserve Police Officer, she was appointed to a full-time police officer position. Later, in 1988, Patti moved to Southern California and joined the Ventura County Sheriff’s Office as a Deputy Sheriff. Over the course of her 30 years with VSO, Patti has risen through the ranks and held a variety of assignments in each of the department’s divisions including patrol, traffic enforcement, community policing, watch commander, jail facility manager, academy director, and Adjutant to the Undersheriff. She managed the Headquarters Patrol Station in Ventura covering the communities from El Rio and Saticoy to Silverstrand Beach and north to the county line. A highlight of her five-year assignment as traffic sergeant for Thousand Oaks Police Department was to partner with more than 40 federal, state and local agencies in managing President Ronald Reagan’s funeral in 2004. Patti was awarded the Medal of Merit by the Peace Officers Association of Ventura County for her part in responding to an active shooter at the Sheriff’s patrol station in Thousand Oaks, also in 2004. Patti has been a tactical/crisis negotiator for over 24 years, and oversees the Tactical Negotiations Unit. She has extensive experience with the National Incident Management System through her involvement with numerous large-scale events impacting Ventura County including the La Conchita mudslides, and the Day, Spring, Thomas and Woolsey wildland fires. She has also served as a field training officer for new patrol deputies and a public information officer. As the Commander at the Todd Road Jail Facility, Patti has full oversight of the secure and humane custody of nearly 800 inmates. The facility was recently approved for a 61 million dollar expansion project, designated the Health and Programming Unit, which will provide focused medical and mental health care for inmates. Delivery of the HPU is anticipated in Spring 2021.
Commander Bill Schierman
Commander Bill Schierman began his career with the Ventura County Sheriff’s Office in 1988. As a deputy, Bill worked a variety of assignments, including the Pre-Trial Detention Facility, Camarillo Patrol, Crime Suppression Unit, and the Camarillo Special Enforcement Detail. Bill was promoted to sergeant in 2006 and served as a Jail Watch Commander at the Pre-Trial Detention Facility before being selected for a position overseeing the Sheriff’s Gang Unit. He also served as the sergeant of the Criminal Intelligence/Crime Analysis Unit. Bill has been a member of the Special Weapons and Tactics (S.W.A.T.) Team for over 25 years, ultimately taking over management duties of the team when he promoted to captain in 2016. As a captain, Bill also worked as the Patrol Watch Commander and provided management oversight of the East County Investigations Bureau as well as the Special Investigations Unit. Bill was promoted to commander in November of 2019 and currently leads the West County Patrol Services Bureau which is comprised of the Headquarters, Ojai, Fillmore and Lockwood Patrol Stations. Bill also oversees the Sheriff’s Communication Center, the Office of Emergency Services, the Sheriff’s Gang Unit, and the Mounted Enforcement Unit. Bill has spent the last six years working as part of a team developing innovative data driven strategies to meet current crime trends. Bill has a Bachelor’s Degree in Criminal Justice Administration from San Diego State University.
Commander Eric Tennessen